Daily Sunspot Evaluation
Observation Sheet Sunday, 7 May 1989
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 12
- Number of spots (f)
- 94
- Relative number (R)
- 214
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19890507.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | GAC – 24 | 30 | 14W | 257 | 17W | 11 | |
| 2 | AR – 1 | 12 | 23E | 220 | 20E | - | |
| 3 | BXO – 5 | 13 | 31E | 212 | 28E | 3 | |
| 4 | CAI – 14 | 16 | 33E | 210 | 30E | 5.5 | |
| 5 | CAI – 8 | 9 | 37E | 206 | 34E | 5 | |
| 6 | ? – 2 | 28 | 77E | 166 | 74E | - | |
| 7 | EKI – 13 | -20 | 69W | 312 | 72W | 13 | |
| 8 | BRO – 4 | -22 | 41W | 284 | 44W | 2 | |
| 9 | AX – 3 | -9 | 31W | 274 | 34W | 1 | |
| 10 | GAD – 5 | -22 | 07E | 236 | 04E | 8 | |
| 11 | GAI – 11 | -31 | 50E | 193 | 47E | 11 | |
| 12 | ? – 4 | -22 | 85E | 158 | 82E | - |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.